CN202841599U - High-voltage light emitting diode lighting device - Google Patents
High-voltage light emitting diode lighting device Download PDFInfo
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- CN202841599U CN202841599U CN 201220339134 CN201220339134U CN202841599U CN 202841599 U CN202841599 U CN 202841599U CN 201220339134 CN201220339134 CN 201220339134 CN 201220339134 U CN201220339134 U CN 201220339134U CN 202841599 U CN202841599 U CN 202841599U
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Abstract
The utility model provides a high-voltage light emitting diode lighting device which comprises a driving device and a high-voltage light emitting diode assembly for lighting, wherein the driving device includes a rectifier bridge used for rectifying alternating current and a constant current diode coupled to the rectifier bridge to output constant current, and the constant current output by the constant current diode flows into the high-voltage light emitting diode assembly. The driving device in the utility model is simple in structure and small in volume, and the output current is constant.
Description
Technical field
The utility model relates to the LED illumination, relates in particular to the high-voltage LED lighting technology.
Background technology
The LED lighting device is widely used in lighting field because of advantages such as its low energy consumption, long-life and environmental protection.According to the characteristic of LED, LED need to work under constant current-supplying, and the power supply of fluctuation can cause fatal impact to LED.
With regard to the power supply of LED, existing more article and patent document provides solution.Be 031551145.7 patent application such as application number, but the device circuitry current fluctuation in this application is larger; Application number is 200510013232.1 patent application, but adopts the not constant current of pressure-limit current-limit circuit in this application; And application number is 200910261989.0 patent application, but this application circuit is comparatively complicated, cost is also higher and efficient is low.
In addition, employed AC drive apparatus generally is transformer in the conventional LED power supply, and volume of transformer is large, and used components and parts are also more.
The utility model content
In view of this, the utility model provides a kind of high-voltage LED lighting device, comprise drive unit and illumination high-voltage LED assembly, thereby described drive unit comprise rectifier bridge and with this rectifier bridge couple output constant current current regulator diode, the constant current of exporting is sent to described high-voltage LED assembly.
According to an aspect of the present utility model, this high-voltage LED assembly is comprised of 4 or 5 LED of forward conduction voltage between 45～56V.
According to an embodiment of the present utility model, drive unit in this high-voltage LED lighting device comprises electric capacity, described electric capacity is coupled in the output of rectifier bridge, the positive input of described current regulator diode is connected with the first end of electric capacity, and high-voltage LED assembly to be powered is coupled between the second end of the forward output of described current regulator diode and electric capacity.In this embodiment, described rectifier bridge is inputted 220 volts alternating current, and the voltage between electric capacity first end and the second end is 310V, and described illumination can be comprised of 5 LEDs of forward conduction voltage between 45～56V with the high-voltage LED assembly.
According to another embodiment of the present utility model, the positive input of the described current regulator diode in this high-voltage LED lighting device and the first output of described rectifier bridge couple, and high-voltage LED assembly to be powered is coupled between the forward output of the second output of described rectifier bridge and described current regulator diode.In this embodiment, the alternating current input rectifying that described rectifier bridge can be used for 220 volts is the alternating current of 100Hz, and described illumination is comprised of 4 LEDs of forward conduction voltage between 45～56V with the high-voltage LED assembly.
Drive unit described in the utility model is made of rectifier bridge and current regulator diode, and device is few, and volume is little, is that the power supply of routine is incomparable.Wherein the application of current regulator diode is constant current with the current conversion of rectifier bridge output effectively then, thereby has effectively avoided being input to the wave phenomenon of the electric current of LED when powering for LED.
Description of drawings
Fig. 1 is the equivalent circuit diagram of rectifier bridge available in the utility model.
Fig. 2 is the structural representation according to the high-voltage LED lighting device of an embodiment of the present utility model.
Fig. 3 is the structural representation according to the high-voltage LED lighting device of another embodiment of the present utility model.
Embodiment
Now further specify by reference to the accompanying drawings the utility model.It will be appreciated by those skilled in the art that, below just in conjunction with embodiment purport of the present utility model is carried out nonrestrictive explanation, the scope that the utility model is advocated is definite by appended claim, and any modification, change that does not break away from the utility model spirit all should be contained by claim of the present utility model.
Before embodiment of the present utility model is described, the single term related concerning the utility model is described as follows: term " high-voltage LED " is with respect to the diode of forward conduction voltage between 3.0～3.3V of routine, as long as the forward conduction voltage of diode is greater than the forward conduction voltage of conventional diode, can be " high-voltage LED " described in the utility model,, 80V between 46～53V, 10V such as forward conduction voltage etc.
Fig. 1 is the equivalent structure schematic diagram of the rectifier that can use of the utility model the following example.The parameter of the rectifier bridge of described schematic diagram is V
R=600, and I
F=0.5A.
Fig. 2 is the structural representation according to the high-voltage LED lighting device of an embodiment of the present utility model.As shown in the figure, the high-voltage LED lighting device comprises drive unit 10 and illumination high-voltage LED assembly 20.Drive unit 10 comprises rectifier bridge 100, electric capacity 101 and current regulator diode 102.Electric capacity 101 is coupled in the output of rectifier bridge 100, the first end 101a of the positive input of current regulator diode 102 and electric capacity 101 couples, and the output of drive unit 10 is made of the terminal of the forward output of current regulator diode 102 and the second end 101b of electric capacity 101 thus.Illumination just is connected between the output of drive unit 10 with high-voltage LED assembly 20.
Exemplarily, illumination among Fig. 2 is comprised of 5 LEDs of forward conduction voltage between 45V～56V with high-voltage LED assembly 20, and rectifier bridge and electric capacity 101 are about 220 volts AC rectification the direct current of 310V, at this, approximately 310V can be 310V, also can be the direct current about 310v.The direct current of 310V becomes galvanic current stream after by current regulator diode 102, is used for driving these 5 high-voltage LEDs, that is the high-voltage LED assembly that is made of these 5 high-voltage LEDs.Need to prove, in this example, current regulator diode 102 will be shared a part of voltage, and the voltage that therefore is applied to high-voltage LED assembly 20 is that 310V voltage deducts the voltage that current regulator diode 102 is shared.But as mentioned before, the forward conduction voltage of every LEDs can be other values, if forward conduction voltage is 31V, then illumination can comprise than the high-voltage LED more than 5 with high-voltage LED assembly 20, and concrete number depends on the voltage at current regulator diode two ends and the voltage of each LED.In this example, be I if flow through the electric current of current regulator diode 102, then illumination is similarly I with the electric current that passes through in the high-voltage LED (i.e. many high-voltage LEDs of series connection).
Need to prove, although all be to illustrate as example with the alternating current to drive unit supply 220V in all examples of the present utility model, but it will be appreciated by those skilled in the art that, the voltage of the alternating current of inputting also can be other values, such as at 180V to any value between the 260V.
Fig. 3 is the structural representation according to the high-voltage LED lighting device of another embodiment of the present utility model.The high-voltage LED lighting device comprises drive unit 11 and illumination high-voltage LED assembly 21.Drive unit 11 comprises rectifier bridge 110 and current regulator diode 112.The first end 110a of the output of the positive input of current regulator diode 112 and rectifier bridge 110 couples, and the output of drive unit 11 is made of the terminal of the forward output of current regulator diode 112 and the second end 110b of rectifier bridge 110 thus.Illumination just is connected between the output of drive unit 11 with high-voltage LED assembly 21.
Exemplarily, illumination among Fig. 3 is comprised of 4 LEDs of forward conduction voltage between 45V～56V with high-voltage LED assembly 21, and in this example, adopt rectifier bridge shown in Figure 1, owing to being full-bridge rectification, therefore the alternating current of 220V, 50Hz becomes the alternating current of 100Hz afterwards by rectifier bridge 110, but current effective value is constant, is enough to drive high-voltage LED assembly 21.After the alternating current of described 100Hz was input to current regulator diode 112,112 outputs of current regulator diode were used for driving the constant current of these 4 high-voltage LEDs.Equally, as mentioned before, the forward conduction voltage of every LEDs can be other values, if like this, then illumination can comprise the high-voltage LED of proper number with high-voltage LED assembly 21.
In this example shown in Figure 3, be I if flow through the electric current of current regulator diode 102, be I/2 in illumination with the electric current that passes through in high-voltage LED (namely connect many high-voltage LEDs) then.
As mentioned above, drive unit described in the utility model only is made of rectifier and current regulator diode (also comprising in one embodiment electric capacity), so simple structure, and volume is small and exquisite.The application of current regulator diode has been guaranteed can be to the stable Constant Electric Current of high-voltage LED assembly supply, effectively prevented from having the electric current of fluctuation to be input to illumination high-voltage LED assembly, more specifically, effectively prevented from having the electric current of fluctuation to be input to each LEDs that throws light on in the high-voltage LED assembly.
Claims (6)
1. high-voltage LED lighting device, comprise drive unit and illumination high-voltage LED assembly, it is characterized in that, described drive unit comprises thereby alternating current carried out the rectifier bridge of rectification and couples the current regulator diode of output constant current with this rectifier bridge, and the constant current of described current regulator diode output flows into described high-voltage LED assembly.
2. high-voltage LED lighting device as claimed in claim 1 is characterized in that, described high-voltage LED assembly is comprised of 4 or 5 LED of forward conduction voltage between 45～56V.
3. high-voltage LED lighting device as claimed in claim 1 or 2, it is characterized in that, described drive unit also comprises electric capacity, described electric capacity is coupled in the output of described rectifier bridge, the positive input of described current regulator diode is connected with the first end of described electric capacity, and high-voltage LED assembly to be powered is coupled between the second end of the forward output of described current regulator diode and described electric capacity.
4. high-voltage LED lighting device as claimed in claim 3, it is characterized in that, the input voltage of described rectifier bridge is 220 volts, voltage between described electric capacity first end and the second end is about 310 volts, and described illumination is comprised of 5 LEDs of forward conduction voltage between 45～56V with the high-voltage LED assembly.
5. high-voltage LED lighting device as claimed in claim 1 or 2, it is characterized in that, the first output of the positive input of described current regulator diode and described rectifier bridge couples, and described high-voltage LED assembly is coupled between the forward output of the second output of described rectifier bridge and described current regulator diode.
6. high-voltage LED lighting device as claimed in claim 5, it is characterized in that, the AC rectification that described rectifier bridge is used for 220 volts is the alternating current of 100Hz, and described illumination is comprised of 4 LEDs of forward conduction voltage between 45～56V with the high-voltage LED assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339134 CN202841599U (en) | 2012-07-13 | 2012-07-13 | High-voltage light emitting diode lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339134 CN202841599U (en) | 2012-07-13 | 2012-07-13 | High-voltage light emitting diode lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841599U true CN202841599U (en) | 2013-03-27 |
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ID=47953184
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339134 Expired - Fee Related CN202841599U (en) | 2012-07-13 | 2012-07-13 | High-voltage light emitting diode lighting device |
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| Country | Link |
|---|---|
| CN (1) | CN202841599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547016A (en) * | 2012-07-13 | 2014-01-29 | 无锡华润华晶微电子有限公司 | High-voltage light-emitting diode lighting device |
-
2012
- 2012-07-13 CN CN 201220339134 patent/CN202841599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547016A (en) * | 2012-07-13 | 2014-01-29 | 无锡华润华晶微电子有限公司 | High-voltage light-emitting diode lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210713 |